In a model where investors disagree about the fundamentals of two stocks, the state price density depends on investor disagreements for both stocks, especially the larger stock. This implies that disagreement among investors in a large firm has a spillover effect on the pricing of other stocks...

In an economic perspective, punitive damages and class actions can be viewed as sharing a common economic function – creating optimal deterrence. Building on Parisi and Cenini (2010), we study the effect of alternative procedural regimes on the effectiveness of punitive damages and class...